SN74HC373DWR

Overview

The SN74HC373DWR is an octal transparent D-type latch with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature from -40°C to +85°C. The device features high-current outputs capable of driving up to 15 LSTTL loads, with low-level output current reaching 32 mA and high-level output current at -7.8 mA. Static current is specified at 8 µA. Propagation delay varies from 200 ns at 2 V to 34 ns at 6 V. It is housed in a 20-pin SOIC package.

Feature Summary

• Features eight transparent D-type latches that allow data inputs to follow outputs while the latch-enable signal is active.
• Provides three-state outputs controlled by an output-enable input to isolate bus lines without requiring interface components.
• Designed for high-current driving capability suitable for highly capacitive or low-impedance loads.

Applications

• Implementing buffer registers
• Configuring I/O ports
• Serving as bidirectional bus drivers
• Functioning as working registers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to ensure correct packaging and material specifications. Confirm RoHS compliance status and moisture sensitivity level ratings prior to procurement. Cross-reference the part number with official distributors to validate authenticity and production status.

Selection Notes

Select this component when designing systems requiring parallel data storage with high-drive capabilities. Ensure the application voltage falls within the 2 V to 6 V range. Consider the propagation delay characteristics relative to system clock speeds. Verify thermal requirements align with the specified operating temperature range for the target environment.

Part Context

This device belongs to the SN74HC373A family of octal transparent D-type latches. It shares functional similarities with other logic families but offers distinct voltage and drive characteristics. The 'DWR' suffix indicates a tape-and-reel packaging format in a 20-pin small-outline integrated circuit (SOIC) housing.

Replacement Considerations

SN74HC373DWRG4